CODEWITHSUNDEEP
jquery
Tom Gullen
Tom Gullen

Reputation: 61775

Jquery increase counter

$('#fCount' + folderID).html(parseInt($('#fCount' + folderID).html()) + "E");

That works, but whatever I try such as:

$('#fCount' + folderID).html(parseInt($('#fCount' + folderID).html())++);

Doesn't work! The html is just a number, like 0 or 8. I just want to increment it by one.

Upvotes: 2

Views: 975

Answers (3)

Keltex
Keltex

Reputation: 26436

You want:

$('#fCount' + folderID).html(parseInt($('#fCount' + folderID).html())+1);

The ++ operator won't work in this case. It can only be used for variables. You need to do +1.

Here's a working demo.

Upvotes: 4

zzzzBov
zzzzBov

Reputation: 179256

the ++ operator only works on variables that you maintain a reference to. In this case you don't have a reference to a value, you have an actual value being returned. You'll either need to store the value in a variable, and then increment the number, or add one manually: 

something = parseInt(someString)+1

Upvotes: 1

lonesomeday
lonesomeday

Reputation: 238065

You need to simply add one (+1) rather than incrementing, which only works on a variable.

You could also use this rather nicer jQuery syntax:

$('#fCount' + folderID).html(function(i, oldHtml) {
    return parseInt(oldHtml, 10) + 1; 
});

Upvotes: 1

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